Copy ui_overrides files from settings_overrides to preserve history

This change is in support of later changes moving the bookmarks_ui
manifest key from chrome_settings_overrides to chrome_ui_overrides.

BUG=349049
R=kalman@chromium.org

Review URL: https://codereview.chromium.org/188813004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@255660 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 255660
Move TranslateManager unit tests out of the browser_tests target.

These are unit tests so they should be in the unit_tests target. A
TODO says this did not work before, but they appear to pass as unit
tests now, so this is just a code move.

BUG=270918
R=droger@chromium.org, hajimehoshi@chromium.org

Review URL: https://codereview.chromium.org/186063007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@255661 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 255661